using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

public class BattleEffectMgr : MonoBehaviour
{
    private BattleField battleField;

    private Dictionary<int, List<BattleEffectPlayer>> effectDict = new Dictionary<int, List<BattleEffectPlayer>>();

    public void Init(BattleField _battleField)
    {
        Release();
        battleField = _battleField;
    }

    public void PauseGame()
    {
        foreach (KeyValuePair<int, List<BattleEffectPlayer>> kvPair in effectDict)
        {
            foreach (BattleEffectPlayer effectPlayer in kvPair.Value)
            {
                if (effectPlayer != null)
                {
                    effectPlayer.Pause();
                }
            }
        }
    }

    public void ResumeGame()
    {
        foreach (KeyValuePair<int, List<BattleEffectPlayer>> kvPair in effectDict)
        {
            foreach (BattleEffectPlayer effectPlayer in kvPair.Value)
            {
                if (effectPlayer != null)
                {
                    effectPlayer.Resume();
                }
            }
        }
    }

    public BattleEffectPlayer PlayEffect(int ObjID, int effectId, Transform parent, BattleCamp camp)
    {
        if (effectId <= 0)
        {
            Debug.LogError("effect id <= 0");
            return null;
        }

        var effectCfg = EffectConfig.Get(effectId);
        if (null == effectCfg)
        {
            Debug.LogError("effect config is null, effectId : " + effectId);
            return null;
        }

        if (!effectDict.ContainsKey(effectId))
        {
            effectDict[effectId] = new List<BattleEffectPlayer>();
        }

        bool isRedCamp = camp == BattleCamp.Red;

        BattleEffectPlayer effectPlayer = BattleEffectPlayer.Create(effectId, battleField.battleRootNode.transform, isRedCamp);
        // 设置特效缩放和方向

        effectPlayer.transform.position = parent.position;
        
        effectPlayer.onDestroy += OnEffectDestroy;
        if (effectPlayer != null)
        {
            effectDict[effectId].Add(effectPlayer);
        }
        effectPlayer.Play(true);
        
        var effectScale = effectPlayer.transform.localScale;
        effectScale.x *= isRedCamp ? 1 : -1;
        effectPlayer.transform.localScale = effectScale;

        return effectPlayer;
    }

    public void RemoveEffect(int effectId, BattleEffectPlayer effectPlayer)
    {
        List<BattleEffectPlayer> effectPlayers = null;

        if (effectDict.TryGetValue(effectId, out effectPlayers))
        {
            effectPlayers.Remove(effectPlayer);
            GameObject.DestroyImmediate(effectPlayer.gameObject);
            effectPlayer = null;
        }
        else
        {
            Debug.LogError("could not find effect in list, effectid : " + effectId);
        }
    }

    protected void OnEffectDestroy(BattleEffectPlayer effectPlayer)
    {
        if (effectDict.ContainsKey(effectPlayer.effectId))
        {
            effectDict[effectPlayer.effectId].Remove(effectPlayer);
            if (effectDict[effectPlayer.effectId].Count == 0)
            {
                effectDict.Remove(effectPlayer.effectId);
            }
        }
    }

    public void HaveRest()
    {
        Release();
    }

    public void Release()
    {
        List<int> fKeys = effectDict.Keys.ToList();

        for (int i = 0; i < fKeys.Count; i++)
        {
            List<BattleEffectPlayer> effectPlayers = effectDict[fKeys[i]];
            while (effectPlayers.Count > 0)
            {
                var effectPlayer = effectPlayers[0];
                if (effectPlayer != null)
                {
                    GameObject.DestroyImmediate(effectPlayer.gameObject);
                }
                else
                {
                    effectPlayers.RemoveAt(0);
                }
            }
        }

        effectDict.Clear();
    }
}